Companies Using OpenLayers

I care a lot about what a detection rule can see, and with OpenLayers the rule decides which kind of user you find. As of our October 2026 crawl, TechnologyChecker.io detects OpenLayers on 7,134 domains, and we matched 4,742 of them to a company. That count covers sites that load OpenLayers as a script or expose its global object. The npm-bundled OpenLayers that GIS developers ship today mostly leaves no trace we can read, so treat 7,134 as a floor and the visible base as the older end of the market.

What the rule sees

We count a domain when a page exposes the OpenLayers 2 global (OpenLayers.VERSION_NUMBER) or the ol object from a full OpenLayers build, or loads a script whose address contains "openlayers". To check what that catches, I fetched a random sample of 90 detected domains. Of the 49 where the marker was visible in the page source, 9 loaded OpenLayers through the OSM WordPress plugin and 8 through other WordPress plugins (WP Go Maps, Directorist, a Bulgarian courier's office-finder plugin for WooCommerce and others). Another 7 got it from Brazilian web-radio site builders, and 11 from CMS extensions and vertical platforms: TYPO3, Contao and Drupal modules, a Spanish real-estate CRM, an Iranian map SDK and a German jobs-portal network. Ten served it from their own servers. Only four loaded it straight from a public CDN or openlayers.org.

Sales Signal: 35 of those 49 sites got OpenLayers from a plugin or platform rather than a developer's decision. Separate the hand-built portals before you treat this as a list of GIS teams.

Growth trajectory

The current window runs from 6,331 domains in June 2026 to 7,173 in September and 7,134 in October. Counts are not a like-for-like series: the set of domains we crawl turns over every month, with dead sites dropping out and newly found ones added, and our detection signals widen over time, so the early steps say as much about our coverage as about new maps. The line is flat now. Exits are heavy for a base this size. 1,670 domains dropped OpenLayers since we began tracking it on 16 March 2026, and only 124 of them still run it on another hostname.

"The OpenLayers we can count is mostly OpenLayers 2 and early ol builds loaded by script tag. The OpenLayers people write today compiles into an app bundle, and from the outside it looks like nothing." - David Thomson, CTO at TechnologyChecker.io

Sales Signal: the 1,546 exits that left no OpenLayers on any hostname are mostly whole sites rebuilt or retired. What remains is long-lived portals and plugin installs, a slow-moving base to sell maintenance into.

OpenLayers 2 is still a third of the base

Over the last 60 days, 2,447 of the 7,162 domains we detected exposed the OpenLayers 2 API, and 2,061 of those reported version 2.13.1, the final release of that line, dated 9 July 2013 on openlayers.org. Its GitHub repository now calls it "OpenLayers v2 - deprecated!"; the current line is 10.11.0, published on 4 October 2026. Some of those sites run OpenLayers 2 on a vendor's schedule. CampusTours' AnyMap campus maps carry 2.13.1 inside their own bundle, and the OSM WordPress plugin loads 2.13.1 next to a current ol build. Others are hand-built and old, such as the National Weather Service's graphical forecast on digital.weather.gov and Derby City Council's public map, which reports a 2.14 development build.

Sales Signal: an OpenLayers 2 detection on a government or utility portal is a dated, specific upgrade project. GIS consultancies can open with the version number and the 2013 date.

Who uses it on purpose

Public bodies are the deliberate core. Government Administration is the top industry at 9.15% (336 companies), and the named list shows why: the FAA's Airport Data and Information Portal (OpenLayers 6.5.0), Philadelphia's property search (6.12.0), Barcelona's city guide (5.3.0), the Turkish postal service's branch finder (7.4.0), Somerset Council next to Astun Technology's iShare maps, and Indonesia's disaster agency BNPB on inaRISK. Deutsche Börse runs 5.3.0 on its corporate site. Real Estate (8.25%) leans on vendors: Spanish listing sites built on the Mobilia Gestión CRM load the same OpenLayers 5 build, and Mobilia's asset host appears on 213 OpenLayers domains in our script logs. By size, 65.03% of matched companies have 1 to 10 employees, but 107 have more than 1,000, and that's where the deliberate GIS portals sit. OpenLayers is an open-source project with no customer list of its own, so every name here comes from our detection.

Sales Signal: filter Government Administration, Higher Education and Utilities above 200 staff. That's the slice where an OpenLayers detection points at an in-house GIS team or a GIS contractor.

Industry and geography

Germany has 1,604 of the 4,742 matched companies (33.83%), more than three times the United States (453). Several routes add up to that lead. German municipal sites on TYPO3 load one shared OpenLayers asset from a common extension, the OSM WordPress plugin is common on German small-business sites, and a regional jobs-portal network draws its maps with OpenLayers. Spain (362) has Mobilia's listing sites and Brazil (334) has web-radio stations. Our third-party script logs cover 3,618 of the 7,123 live domains, and in them radio site builders such as BRLOGIC and Brascast appear on 443 OpenLayers domains (12.24%), which fits Broadcast Media Production and Distribution reaching 3.54% of matched companies.

Sales Signal: in Germany, target municipalities and regional authorities directly. In Brazil and Spain the useful contact is the platform vendor, not the station or the estate agent.

Overlap with other map libraries

Our switching table for OpenLayers is empty because no pair passed our tests: most domains that ever ran OpenLayers with a rival still run both. 806 domains run it with Leaflet today, out of 1,021 ever seen with both. For Google Maps the figures are 733 of 896, for Mapbox GL JS 79 of 107 and for OpenStreetMap 49 of 60. A portal with an OpenLayers GIS viewer and a Google Maps embed on its contact page isn't switching anything.

"806 of the 1,021 domains we've seen with OpenLayers and Leaflet still run both. On public-sector sites, map libraries pile up. They rarely replace each other." - David Thomson, CTO at TechnologyChecker.io

Sales Signal: pitch consolidation, not replacement: one supported map stack for sites carrying two or three.

The stack around it

Across the 7,119 live OpenLayers domains in our stack analysis, jQuery runs on 89.25% and jQuery UI on 41.16%, a classic front end. WordPress is on 43.98%, TYPO3 on 7.54%, Directorist on 5.28% and Drupal on 4.23%. Matomo is on 9.65% against Google Analytics' 40.55%, and Microsoft ASP.NET on 7.53%, which marks the custom-built public portals.

Sales Signal: the ASP.NET and TYPO3 slices are where in-house or contracted developers maintain the map. The WordPress slice mostly runs whatever the plugin ships.

Key takeaways

• 7,134 domains in October 2026, #11 in Maps & Geolocation with 0.29%, and a floor, because bundled OpenLayers is invisible to our rule.
• About a third of detected domains still expose OpenLayers 2, mostly version 2.13.1 from 2013.
• Germany leads with 1,604 of 4,742 matched companies.
• Plugins and vertical platforms carry most of the visible base: the OSM WordPress plugin, Brazilian radio builders, Mobilia, Neshan and CampusTours.
• Government Administration (9.15%) is the deliberate core.
• No switching corridor. 806 domains run OpenLayers and Leaflet together.

Sales applications

Targeting: on TechnologyChecker.io, filter OpenLayers, keep Government Administration, Higher Education and Utilities, and exclude WordPress to drop most plugin installs.

Outreach: "Your public map still runs OpenLayers 2.13.1, a 2013 release of a line its maintainers mark as deprecated. We move WMS and WFS viewers to current OpenLayers without breaking the links people have bookmarked."

Competitive angle: the 806 sites running OpenLayers and Leaflet side by side maintain two map libraries, and they're the natural audience for one.

The full list of 7,134 OpenLayers domains and 4,742 matched companies is on TechnologyChecker.io.